Perhaps even clavus, a nail, must also be considered, for a Latin vocabulary of the fifteenth century tells us- "Claves, -vos vet -vas qui fert sit claviger."
"The Romance of Names"
Ernest Weekley
Erat illi natus insanabilis clavus, cuius taedio ad mortem inrevocabili constantia decucurrit, usque ad supremum diem beatus et felix, nisi quod minorem ex liberis duobus amisit, sed maiorem melioremque florentem atque etiam consularem reliquit.
"The Student's Companion to Latin Authors"
George Middleton Thomas R. Mills
They take their name from the Latin word clavus, or the French clou, both meaning a nail, and to which the clove has a considerable resemblance.
"The Book of Household Management"
Mrs. Isabella Beeton